Pic16f84a Powerful FLASH/EEPROM 8-Bit Microcontroller:Pinout，Features，Package

This document contains device specific information for the operation of the PIC16F84A device. Additional information may be found in the PIC® Mid-Range Reference Manual, (DS33023), which may be downloaded from the Microchip website. The Reference Manual should be considered a complementary document to this datasheet, and is a highly recommended reading for a better understanding of the device architecture and operation of the peripheral modules. 

The PIC16F84A belongs to the mid-range family of the PIC® microcontroller devices. A block diagram of the device is shown in Figure 1-1. The program memory contains 1K words, which translates to 1024 instructions, since each 14-bit program memory word is the same width as each device instruction. The data memory (RAM) contains 68 bytes. Data EEPROM is 64 bytes. 

There are also 13 I/O pins that are user-configured on a pin-to-pin basis. Some pins are multiplexed with other device functions. 

These functions include: 

• External interrupt 

• Change on PORTB interrupt 

• Timer0 clock input 

Pic16f84a Symbol

Pic16f84a Footprint

Pic16f84a 3D Model

• Only 35 single word instructions to learn 

• All instructions single-cycle except for program branches which are two-cycle 

• Operating speed: DC - 20 MHz clock input DC - 200 ns instruction cycle 

• 1024 words of program memory 

• 68 bytes of Data RAM 

• 64 bytes of Data EEPROM 

• 14-bit wide instruction words

• 8-bit wide data bytes 

• 15 Special Function Hardware registers 

• Eight-level deep hardware stack 

• Direct, indirect and relative addressing modes 

• Four interrupt sources: 

  - External RB0/INT pin 

  - TMR0 timer overflow 

  - PORTB<7:4> interrupt-on-change 

  - Data EEPROM write complete

Microchip Technology PIC16F84A-04/P technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology PIC16F84A-04/P.

PIC16F84A Package

PIC16F84A Dimension

Microchip Technology Inc. is a publicly-listed American corporation that manufactures microcontroller, mixed-signal, analog and Flash-IP integrated circuits. Its products include microcontrollers (PIC, dsPIC, AVR and SAM), Serial EEPROM devices, Serial SRAM devices, embedded security devices, radio frequency (RF) devices, thermal, power and battery management analog devices, as well as linear, interface and wireless products.

Its corporate headquarters is located in Chandler, Arizona. Its wafer fabs are located in Tempe, Arizona, Gresham, Oregon, and Colorado Springs, Colorado. Its assembly/test facilities are in Chachoengsao, Thailand, and Calamba and Cabuyao, Philippines. Sales for the fiscal year ending on March 31, 2019 were $5.35 billion.[3]

Microchip Technology offers support and resources to educators, researchers and students in an effort to increase awareness and knowledge of embedded applications.[4][5][6] Support includes access to labs, curricula and course materials, One-on-one consultations, online resources (e.g., code examples, textbook recommendations), training at regional training centers, silicon donations, assistance finding low cost development tools, free versions of Microchip programming tools and product discounts.